code: def test_call_gen_without_stream_flag(
      self, serve_instance, deployment: Deployment
  ):
      @serve.deployment
      class Delegate:
          def __init__(self, streamer: RayServeHandle):
              self._h = streamer
  
          async def __call__(self):
              with pytest.raises(
                  TypeError,
                  match=(
                      "Method '__call__' returned a generator. You must use "
                      "`handle.options\(stream=True\)` to call generators on a "
                      "deployment."
                  ),
              ):
                  await self._h.remote(5)
  
              with pytest.raises(
                  TypeError,
                  match=(
                      "Method 'call_inner_generator' returned a generator. You must "
                      "use `handle.options\(stream=True\)` to call generators on a "
                      "deployment."
                  ),
              ):
                  await self._h.call_inner_generator.remote(5)
  
      h = serve.run(Delegate.bind(deployment.bind()))
      h.remote().result()
  
imports: import sys
  from typing import AsyncGenerator, Generator
  import pytest
  from ray import serve
  from ray.serve import Deployment
  from ray.serve.handle import RayServeHandle
label_desc: Use image node_id 2 for calling the TestDeploymentHandleStreaming obj's underlying member method code with example usage: obj.test_call_gen_without_stream_flag(serve_instance, deployment) without return types